Real estate maven Louise Sunshine — formerly Donald Trump’s right-hand woman before he became president and she became a real estate marketing powerhouse in her own right — is putting her own apartment at The Laurel, 400 E. 67th St., back on the market for $4.59 million.

We hear the broker is her son, Sam Sunshine, who is leaving Corcoran and moving to Sotheby’s. He will be working with power duo Brenda Powers and Elizabeth Lee Sample — and bringing his mom’s listing with him, sources say.

As vice president of the Trump Organization from 1973 to 1985, Louise Sunshine — who was Trump’s top female exec — helped him open his first Manhattan office, build Trump Tower and develop the Trump brand. Sunshine, known as a marketing guru, founded her own company, the Sunshine Group, in 1986 and then sold it to NRT, The Corcoran Group’s parent company, for a hefty, undisclosed sum. By 2005, it had merged with Corcoran to become the Corcoran Sunshine Marketing Group, which remains a major force on the NYC real estate scene.

Sunshine’s three-bedroom, 3½-bathroom corner unit, on the 22nd floor, is 1,981 square feet. It was previously asking $4.59 million before its swap.

The apartment opens with a grand foyer and a living room with city views from oversize windows. The unit features oak floors, a spa-like marble master bath and a chef’s kitchen.

The limestone building is LEED-certified. Amenities include a gym, pool and residents’ lounge.